U.S. patent number 11,425,555 [Application Number 16/701,062] was granted by the patent office on 2022-08-23 for ue assistance information for power saving configuration.
This patent grant is currently assigned to QUALCOMM Incorporated. The grantee listed for this patent is QUALCOMM Incorporated. Invention is credited to Linhai He, Gavin Bernard Horn, Tao Luo, Wooseok Nam.
United States Patent |
11,425,555 |
He , et al. |
August 23, 2022 |
UE assistance information for power saving configuration
Abstract
An UE transmits at least one UE configuration parameter to a
base station comprising at least one preferred parameter for a UE
configuration, e.g., in addition to a preferred setting for a delay
budget report. The UE then receives a configuration from the base
station based, at least in part, on the at least one UE
configuration parameter transmitted to the base station.
Additionally, a base station receives the at least one UE
configuration parameter from a UE comprising at least one preferred
parameter for a UE configuration, e.g., in addition to a preferred
setting for a delay budget report. The base station then configures
the UE using the at least one UE configuration parameter received
from the UE.
Inventors: |
He; Linhai (San Diego, CA),
Nam; Wooseok (San Diego, CA), Luo; Tao (San Diego,
CA), Horn; Gavin Bernard (La Jolla, CA) |
Applicant: |
Name |
City |
State |
Country |
Type |
QUALCOMM Incorporated |
San Diego |
CA |
US |
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Assignee: |
QUALCOMM Incorporated (San
Diego, CA)
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Family
ID: |
1000006511713 |
Appl.
No.: |
16/701,062 |
Filed: |
December 2, 2019 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20200186991 A1 |
Jun 11, 2020 |
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Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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62775790 |
Dec 5, 2018 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04W
72/046 (20130101); H04W 76/27 (20180201); H04L
5/1469 (20130101); H04W 52/0277 (20130101); H04W
76/28 (20180201); H04W 8/183 (20130101); H04W
24/08 (20130101); H04W 72/0453 (20130101) |
Current International
Class: |
H04W
8/18 (20090101); H04W 52/02 (20090101); H04W
76/28 (20180101); H04W 24/08 (20090101); H04W
72/04 (20090101); H04W 76/27 (20180101); H04L
5/14 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Other References
3GPP TSG RAN WG1 Meeting #95 R1-1812231 (Year: 2018). cited by
examiner .
Huawei, et al., "Power Saving Techniques," 3GPP Draft, 3GPP TSG RAN
WG1 Meeting #95, R1-1812231, 3rd Generation Partnership Project
(3GPP), Mobile Competence Centre, 650, Route Des Lucioles, F-06921,
Sophia-Antipolis Cedex, France, vol. RAN WG1, No. Spokane, USA,
Nov. 12, 2018-Nov. 16, 2018, Nov. 11, 2018 (Nov. 11, 2018),
XP051554103, 7 pages, Retrieved from the Internet: URL:
http://www.3gpp.org/ftp/Meetings%5F3GPP%5FSYNC/RAN1/Docs/R1%2D1812231%2Ez-
ip [retrieved on Nov. 11, 2018], the whole document. cited by
applicant .
International Search Report and Written
Opinion--PCT/US2019/064300--ISA/EPO--dated Feb. 25, 2020. cited by
applicant .
OPPO: "UE Adaptation to the Traffic and UE Power Consumption," 3GPP
Draft, 3GPP TSG RAN WG1 Meeting #95, R1-1812824, 3rd Generation
Partnership Project (3GPP), Mobile Competence Centre, 650, Route
Des Lucioles, F-06921, Sophia-Antipolis Cedex, France, vol. RAN
WG1, No. Spokane, USA, Nov. 12, 2018-Nov. 16, 2018, Nov. 11, 2018
(Nov. 11, 2018), XP051554784, 10 pages, Retrieved from the
Internet: URL:
http://www.3gpp.org/ftp/Meetings%5F3GPP%5FSYNC/RAN1/Docs/R1%2D1812824%2Ez-
ip [retrieved on Nov. 11, 2018], the whole document. cited by
applicant .
Qualcomm Incorporated: "UE Adaptation to the Traffic and UE Power
Consumption Characteristics," 3GPP Draft, 3GPP TSG-RAN WG1 Meeting
#95, R1-1813447, UE Adaptation for Power Saving, 3rd Generation
Partnership Project (3GPP), France, vol. RAN WG1, No. Spokane,
Washington, USA, Nov. 12, 2018-Nov. 16, 2018, Nov. 11, 2018,
XP051555486, 20 pages, Retrieved from the Internet: URL:
http://www.3gpp.org/ftp/Meetings%5F3GPP%5FSYNC/RAN1/Docs/R1%2D1813447%2Ez-
ip [retrieved on Nov. 11, 2018], Section 5.2, the whole document.
cited by applicant .
ZTE: "Considerations on Triggering for UE Power Saving", 3GPP
Draft, 3GPP TSG RAN WG1 Meeting #95, R1-1812422, Considerations,
vol. RAN WG1, No. Spokane, USA, Nov. 12, 2018-Nov. 16, 2018, Nov.
11, 2018 (Nov. 11, 2018), XP051554338, 7 pages, Retrieved from the
Internet: URL:
http://www.3gpp.org/ftp/Meetings%5F3GPP%5FSYNC/RAN1/Docs/R1%2D1812422%2Ez-
ip [retrieved on Nov. 11, 2018], the whole document. cited by
applicant.
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Primary Examiner: Ngo; Ricky Q
Assistant Examiner: Steiner; Stephen N
Attorney, Agent or Firm: Yang; Yanling
Parent Case Text
CROSS REFERENCE TO RELATED APPLICATION(S)
This application claims the benefit of U.S. Provisional Application
Ser. No. 62/775,790, entitled "UE Assistance Information for Power
Saving Configuration" and filed on Dec. 5, 2018, which is expressly
incorporated by reference herein in its entirety.
Claims
What is claimed is:
1. A method of wireless communication at a User Equipment (UE),
comprising: transmitting, to a network entity, UE assistance
information including: a delay budget report indicating a
preference to adjust a connected mode discontinuous reception (DRX)
configuration; and an indication of at least one preferred
parameter for a UE configuration for each of a DRX long cycle, a
DRX short cycle, a DRX inactivity timer, and a DRX short cycle
timer; and receiving a DRX configuration from the network
entity.
2. The method of claim 1, wherein the UE assistance information
further indicates a preferred parameter for at least one of a
Discontinuous Reception (DRX) on duration or a DRX slot offset.
3. The method of claim 1, wherein the indication of the at least
one preferred parameter is comprised in an Information Element
(IE).
4. The method of claim 1, wherein the UE assistance information
further indicates a preferred discontinuous reception parameter
including at least one of an average data rate, an average
transport block size, or an average burst duration.
5. The method of claim 1, wherein the UE assistance information
further indicates preferred bandwidth configuration for the UE
including at least one of an aggregated bandwidth across serving
cells for different types of carriers, a downlink/uplink bandwidth
part index for a serving cell, a number of uplink carriers, a
number of downlink carriers.
6. The method of claim 1, wherein the UE assistance information
further indicates a preferred data channel parameter including a
maximum transport block size for a downlink data channel or an
uplink data channel.
7. The method of claim 1, wherein the UE assistance information
further indicates a preferred control channel parameter including,
wherein the preferred control channel parameter comprises at least
one of a Time Division Duplex (TDD) pattern, a control channel
monitoring periodicity, or processing timeline related to feedback
processing.
8. The method of claim 1, wherein the UE assistance information
further indicates a beam management parameter, wherein the beam
management parameter comprises at least one of a preferred antenna
panel, a preferred beam, information about a trajectory of the UE,
or a mobility parameter for the UE.
9. The method of claim 1, wherein the UE assistance information
further indicates power status information for the UE, wherein the
power status information indicates at least one of a battery level,
a thermal level of a modem, or a power preference for the UE.
10. The method of claim 1, further comprising: receiving a range of
available parameters from the network entity; and selecting a
parameter for the at least one preferred parameter from among the
range of available parameters received from the network entity.
11. The method of claim 10, wherein the range of available
parameters is received in a broadcast from the network entity or is
received in a dedicated RRC signaling for the UE, and wherein the
at least one preferred parameter comprises an index corresponding
to a value selected from among the range of available parameters
received from the network entity.
12. The method of claim 10, further comprising: determining that UE
indication of the at least one preferred parameter is supported by
the network entity based on receiving the range of available
parameters from the network entity.
13. An apparatus for wireless communication at a User Equipment
(UE), comprising: a memory; and at least one processor coupled to
the memory and configured to: transmit, to a network entity, UE
assistance information including: a delay budget report indicating
a preference to adjust a connected mode discontinuous reception
(DRX) configuration; and an indication of at least one preferred
parameter for a UE configuration for each of a DRX long cycle, a
DRX short cycle, a DRX inactivity timer, and a DRX short cycle
timer; and receive a DRX configuration from the network entity.
14. A method of wireless communication at a network entity,
comprising: receiving, from a User Equipment (UE), UE assistance
information including: a delay budget report indicating a
preference to adjust a connected mode discontinuous reception (DRX)
configuration; and an indication of at least one preferred
parameter for a UE configuration for each of a DRX long cycle, a
DRX short cycle, a DRX inactivity timer, and a DRX short cycle
timer; and configuring a DRX configuration for the UE.
15. The method of claim 14, wherein the UE assistance information
further indicates a parameter for at least one of a Discontinuous
Reception (DRX) on duration or a DRX slot offset.
16. The method of claim 14, wherein the at least one preferred
parameter is indicated in an Information Element (IE).
17. The method of claim 14, wherein the UE assistance information
further indicates a preferred discontinuous reception parameter
including at least one of an average data rate, an average
transport block size, or an average burst duration.
18. The method of claim 14, wherein the UE assistance information
further indicates a preferred bandwidth configuration for the UE
including at least one of an aggregated bandwidth across serving
cells for different types of carriers, a downlink/uplink bandwidth
part index for a serving cell, a number of uplink carriers, a
number of downlink carriers.
19. The method of claim 14, wherein the UE assistance information
further indicates a preferred data channel parameter including a
maximum transport block size for a downlink data channel or an
uplink data channel.
20. The method of claim 14, wherein the UE assistance information
further indicates a preferred control channel parameter, wherein
the preferred control channel parameter comprises at least one of a
Time Division Duplex (TDD) pattern, a control channel monitoring
periodicity, or a processing timeline related to feedback
processing.
21. The method of claim 14, wherein the UE assistance information
further indicates a beam management parameter, wherein the beam
management parameter comprises at least one of a preferred antenna
panel, a preferred beam, information about a trajectory of the UE,
or a mobility parameter for the UE.
22. The method of claim 14, wherein the UE assistance information
further indicates power status information for the UE, wherein the
power status information indicates at least one of a battery level,
a thermal level of a modem, or a power preference for the UE.
23. The method of claim 14, further comprising: transmitting a
range of available parameters from the network entity, wherein the
at least one preferred parameter comprises a parameter selected
from among the range of available parameters received from the
network entity.
24. The method of claim 23, wherein the range of available
parameters is broadcast from the network entity or is transmitted
in a dedicated RRC signaling for the UE.
25. The method of claim 23, wherein the at least one preferred
parameter comprises an index corresponding to a value selected from
among the range of available parameters transmitted from the
network entity.
26. An apparatus for wireless communication at a network entity,
comprising: a memory; and at least one processor coupled to the
memory and configured to: receive, from a User Equipment (UE), UE
assistance information including: a delay budget report indicating
a preference to adjust a connected mode discontinuous reception
(DRX) configuration; and an indication of at least one preferred
parameter for a UE configuration for each of a DRX long cycle, a
DRX short cycle, a DRX inactivity timer, and a DRX short cycle
timer; and configure a DRX configuration for the UE.
27. The apparatus of claim 13, wherein the memory and the at least
one processor are configured to indicate the at least one preferred
parameter in an Information Element (IE).
28. The apparatus of claim 13, wherein the memory and the at least
one processor are configured to indicate the at least one preferred
parameter and a preferred setting for the delay budget report in a
UE Assistance IE (UAI).
29. The method of claim 1, wherein the UE assistance information
further indicates an aggregated bandwidth preference for an
aggregated bandwidth across serving cells for power savings at the
UE.
30. The apparatus of claim 13, wherein the UE assistance
information further indicates an aggregated bandwidth preference
for an aggregated bandwidth across serving cells for power savings
at the UE.
31. An apparatus for wireless communication at a User Equipment
(UE), comprising: means for transmitting, to a network entity, UE
assistance information including: a delay budget report indicating
a preference to adjust a connected mode discontinuous reception
(DRX) configuration; and an indication of at least one preferred
parameter for a UE configuration for each of a DRX long cycle, a
DRX short cycle, a DRX inactivity timer, and a DRX short cycle
timer; and means for receiving a DRX configuration from the network
entity.
Description
BACKGROUND
Technical Field
The present disclosure relates generally to communication systems,
and more particularly, to a communication between a User Equipment
(UE) and a base station.
INTRODUCTION
Wireless communication systems are widely deployed to provide
various telecommunication services such as telephony, video, data,
messaging, and broadcasts. Typical wireless communication systems
may employ multiple-access technologies capable of supporting
communication with multiple users by sharing available system
resources. Examples of such multiple-access technologies include
code division multiple access (CDMA) systems, time division
multiple access (TDMA) systems, frequency division multiple access
(FDMA) systems, orthogonal frequency division multiple access
(OFDMA) systems, single-carrier frequency division multiple access
(SC-FDMA) systems, and time division synchronous code division
multiple access (TD-SCDMA) systems.
These multiple access technologies have been adopted in various
telecommunication standards to provide a common protocol that
enables different wireless devices to communicate on a municipal,
national, regional, and even global level. An example
telecommunication standard is 5G New Radio (NR). 5G NR is part of a
continuous mobile broadband evolution promulgated by Third
Generation Partnership Project (3GPP) to meet new requirements
associated with latency, reliability, security, scalability (e.g.,
with Internet of Things (IoT)), and other requirements. 5G NR
includes services associated with enhanced mobile broadband (eMBB),
massive machine type communications (mMTC), and ultra reliable low
latency communications (URLLC). Some aspects of 5G NR may be based
on the 4G Long Term Evolution (LTE) standard. There exists a need
for further improvements in 5G NR technology. These improvements
may also be applicable to other multi-access technologies and the
telecommunication standards that employ these technologies.
SUMMARY
The following presents a simplified summary of one or more aspects
in order to provide a basic understanding of such aspects. This
summary is not an extensive overview of all contemplated aspects,
and is intended to neither identify key or critical elements of all
aspects nor delineate the scope of any or all aspects. Its sole
purpose is to present some concepts of one or more aspects in a
simplified form as a prelude to the more detailed description that
is presented later.
A network may control a radio configuration for a user equipment
(UE). Aspects presented herein enable the network to determine more
effective radio configurations for a particular UE by having the UE
provide information about the UE, such as configuration
preferences, with the base station. The base station may then
determine radio configurations for the UE based on an increased
understanding of factors and preferences for the UE.
In an aspect of the disclosure, a method, a computer-readable
medium, and an apparatus are provided for wireless communication at
a UE. The apparatus transmits at least one UE configuration
parameter to a base station comprising at least one preferred
parameter for a UE configuration, e.g., in addition to a preferred
setting for a delay budget report. The UE then receives a
configuration from the base station based, at least in part, on the
UE configuration parameter(s) transmitted to the base station.
In an aspect of the disclosure, a method, a computer-readable
medium, and an apparatus are provided for wireless communication at
a base station. The apparatus receives at least one UE
configuration parameter from a UE comprising at least one preferred
parameter for a UE configuration, e.g., in addition to a preferred
setting for a delay budget report. The base station then configures
the UE using the UE configuration parameter(s) received from the
UE.
To the accomplishment of the foregoing and related ends, the one or
more aspects comprise the features hereinafter fully described and
particularly pointed out in the claims. The following description
and the annexed drawings set forth in detail certain illustrative
features of the one or more aspects. These features are indicative,
however, of but a few of the various ways in which the principles
of various aspects may be employed, and this description is
intended to include all such aspects and their equivalents.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a diagram illustrating an example of a wireless
communications system and an access network.
FIGS. 2A, 2B, 2C, and 2D are diagrams illustrating examples of a
first 5G/NR frame, DL channels within a 5G/NR subframe, a second
5G/NR frame, and UL channels within a 5G/NR subframe,
respectively.
FIG. 3 is a diagram illustrating an example of a base station and
user equipment (UE) in an access network.
FIG. 4 illustrates an example of communication exchanged between a
base station and a UE including transmission of a preferred
parameter for a UE configuration to a base station.
FIG. 5 is a flowchart of a method of wireless communication
including transmission of a preferred parameter for a UE
configuration to a base station.
FIG. 6 is a conceptual data flow diagram illustrating the data flow
between different means/components in an example apparatus.
FIG. 7 is a diagram illustrating an example of a hardware
implementation for an apparatus employing a processing system.
FIG. 8 is a flowchart of a method of wireless communication
including receipt of a preferred parameter for a UE
configuration.
FIG. 9 is a conceptual data flow diagram illustrating the data flow
between different means/components in an example apparatus.
FIG. 10 is a diagram illustrating an example of a hardware
implementation for an apparatus employing a processing system.
DETAILED DESCRIPTION
The detailed description set forth below in connection with the
appended drawings is intended as a description of various
configurations and is not intended to represent the only
configurations in which the concepts described herein may be
practiced. The detailed description includes specific details for
the purpose of providing a thorough understanding of various
concepts. However, it will be apparent to those skilled in the art
that these concepts may be practiced without these specific
details. In some instances, well known structures and components
are shown in block diagram form in order to avoid obscuring such
concepts.
A network may control many aspects of the radio configurations for
a UE. However, a UE has a better understanding of various factors
than the base station. For example, the UE is aware of a power
status, e.g., including an anticipated battery life. The UE is also
aware of user changes to power preferences, e.g., when a user
switches to a low power mode in a user menu at the UE. A UE may
also be aware that an application is active or is anticipated to be
active. Aspects presented herein enable a network to make more
effective radio configurations for a particular UE by having the UE
share information about the UE, including recommendations and/or
preferences, with the base station. For example, the UE may provide
recommendations/preferences regarding the UE's preferred radio
configurations based on information known at the UE that is not
known by the base station. The base station may then determine
radio configurations for the UE based on an increased understanding
of factors and preferences for the UE.
Several aspects of telecommunication systems will now be presented
with reference to various apparatus and methods. These apparatus
and methods will be described in the following detailed description
and illustrated in the accompanying drawings by various blocks,
components, circuits, processes, algorithms, etc. (collectively
referred to as "elements"). These elements may be implemented using
electronic hardware, computer software, or any combination thereof.
Whether such elements are implemented as hardware or software
depends upon the particular application and design constraints
imposed on the overall system.
By way of example, an element, or any portion of an element, or any
combination of elements may be implemented as a "processing system"
that includes one or more processors. Examples of processors
include microprocessors, microcontrollers, graphics processing
units (GPUs), central processing units (CPUs), application
processors, digital signal processors (DSPs), reduced instruction
set computing (RISC) processors, systems on a chip (SoC), baseband
processors, field programmable gate arrays (FPGAs), programmable
logic devices (PLDs), state machines, gated logic, discrete
hardware circuits, and other suitable hardware configured to
perform the various functionality described throughout this
disclosure. One or more processors in the processing system may
execute software. Software shall be construed broadly to mean
instructions, instruction sets, code, code segments, program code,
programs, subprograms, software components, applications, software
applications, software packages, routines, subroutines, objects,
executables, threads of execution, procedures, functions, etc.,
whether referred to as software, firmware, middleware, microcode,
hardware description language, or otherwise.
Accordingly, in one or more example aspects, the functions
described may be implemented in hardware, software, or any
combination thereof. If implemented in software, the functions may
be stored on or encoded as one or more instructions or code on a
computer-readable medium. Computer-readable media includes computer
storage media. Storage media may be any available media that can be
accessed by a computer. By way of example, and not limitation, such
computer-readable media can comprise a random-access memory (RAM),
a read-only memory (ROM), an electrically erasable programmable ROM
(EEPROM), optical disk storage, magnetic disk storage, other
magnetic storage devices, combinations of the aforementioned types
of computer-readable media, or any other medium that can be used to
store computer executable code in the form of instructions or data
structures that can be accessed by a computer.
FIG. 1 is a diagram illustrating an example of a wireless
communications system and an access network 100. The wireless
communications system (also referred to as a wireless wide area
network (WWAN)) includes base stations 102, UEs 104, an Evolved
Packet Core (EPC) 160, and a 5G Core (5GC) 190. The base stations
102 may include macro cells (high power cellular base station)
and/or small cells (low power cellular base station). The macro
cells include base stations. The small cells include femtocells,
picocells, and microcells.
The base stations 102 configured for 4G LTE (collectively referred
to as Evolved Universal Mobile Telecommunications System (UMTS)
Terrestrial Radio Access Network (E-UTRAN)) may interface with the
EPC 160 through backhaul links 132 (e.g., Si interface). The base
stations 102 configured for 5G NR (collectively referred to as Next
Generation RAN (NG-RAN)) may interface with 5GC 190 through
backhaul links 184. In addition to other functions, the base
stations 102 may perform one or more of the following functions:
transfer of user data, radio channel ciphering and deciphering,
integrity protection, header compression, mobility control
functions (e.g., handover, dual connectivity), inter-cell
interference coordination, connection setup and release, load
balancing, distribution for non-access stratum (NAS) messages, NAS
node selection, synchronization, radio access network (RAN)
sharing, multimedia broadcast multicast service (MBMS), subscriber
and equipment trace, RAN information management (RIM), paging,
positioning, and delivery of warning messages. The base stations
102 may communicate directly or indirectly (e.g., through the EPC
160 or 5GC 190) with each other over backhaul links 134 (e.g., X2
interface). The backhaul links 134 may be wired or wireless.
The base stations 102 may wirelessly communicate with the UEs 104.
Each of the base stations 102 may provide communication coverage
for a respective geographic coverage area 110. There may be
overlapping geographic coverage areas 110. For example, the small
cell 102' may have a coverage area 110' that overlaps the coverage
area 110 of one or more macro base stations 102. A network that
includes both small cell and macro cells may be known as a
heterogeneous network. A heterogeneous network may also include
Home Evolved Node Bs (eNBs) (HeNBs), which may provide service to a
restricted group known as a closed subscriber group (CSG). The
communication links 120 between the base stations 102 and the UEs
104 may include uplink (UL) (also referred to as reverse link)
transmissions from a UE 104 to a base station 102 and/or downlink
(DL) (also referred to as forward link) transmissions from a base
station 102 to a UE 104. The communication links 120 may use
multiple-input and multiple-output (MIMO) antenna technology,
including spatial multiplexing, beamforming, and/or transmit
diversity. The communication links may be through one or more
carriers. The base stations 102/UEs 104 may use spectrum up to Y
MHz (e.g., 5, 10, 15, 20, 100, 400, etc. MHz) bandwidth per carrier
allocated in a carrier aggregation of up to a total of Yx MHz (x
component carriers) used for transmission in each direction. The
carriers may or may not be adjacent to each other. Allocation of
carriers may be asymmetric with respect to DL and UL (e.g., more or
less carriers may be allocated for DL than for UL). The component
carriers may include a primary component carrier and one or more
secondary component carriers. A primary component carrier may be
referred to as a primary cell (PCell) and a secondary component
carrier may be referred to as a secondary cell (SCell).
Certain UEs 104 may communicate with each other using
device-to-device (D2D) communication link 158. The D2D
communication link 158 may use the DL/UL WWAN spectrum. The D2D
communication link 158 may use one or more sidelink channels, such
as a physical sidelink broadcast channel (PSBCH), a physical
sidelink discovery channel (PSDCH), a physical sidelink shared
channel (PSSCH), and a physical sidelink control channel (PSCCH).
D2D communication may be through a variety of wireless D2D
communications systems, such as for example, FlashLinQ, WiMedia,
Bluetooth, ZigBee, Wi-Fi based on the IEEE 802.11 standard, LTE, or
NR.
The wireless communications system may further include a Wi-Fi
access point (AP) 150 in communication with Wi-Fi stations (STAs)
152 via communication links 154 in a 5 GHz unlicensed frequency
spectrum. When communicating in an unlicensed frequency spectrum,
the STAs 152/AP 150 may perform a clear channel assessment (CCA)
prior to communicating in order to determine whether the channel is
available.
The small cell 102' may operate in a licensed and/or an unlicensed
frequency spectrum. When operating in an unlicensed frequency
spectrum, the small cell 102' may employ NR and use the same 5 GHz
unlicensed frequency spectrum as used by the Wi-Fi AP 150. The
small cell 102', employing NR in an unlicensed frequency spectrum,
may boost coverage to and/or increase capacity of the access
network. A base station 102, whether a small cell 102' or a large
cell (e.g., macro base station), may include an eNB, gNodeB (gNB),
or other type of base station. Some base stations 180, such as a
gNB, may operate in a traditional sub 6 GHz spectrum, in millimeter
wave (mmW) frequencies, and/or near mmW frequencies in
communication with the UE 104. When a base station 180, such as a
gNB, operates in mmW or near mmW frequencies, the base station 180
may be referred to as an mmW base station. Extremely high frequency
(EHF) is part of the RF in the electromagnetic spectrum. EHF has a
range of 30 GHz to 300 GHz and a wavelength between 1 millimeter
and 10 millimeters. Radio waves in the band may be referred to as a
millimeter wave. Near mmW may extend down to a frequency of 3 GHz
with a wavelength of 100 millimeters. The super high frequency
(SHF) band extends between 3 GHz and 30 GHz, also referred to as
centimeter wave. Communications using the mmW/near mmW radio
frequency band has extremely high path loss and a short range. The
mmW base station, e.g., base station 180, may utilize beamforming
182 with the UE 104 to compensate for the extremely high path loss
and short range.
The base station 180 may transmit a beamformed signal to the UE 104
in one or more transmit directions 182'. The UE 104 may receive the
beamformed signal from the base station 180 in one or more receive
directions 182''. The UE 104 may also transmit a beamformed signal
to the base station 180 in one or more transmit directions. The
base station 180 may receive the beamformed signal from the UE 104
in one or more receive directions. The base station 180/UE 104 may
perform beam training to determine the best receive and transmit
directions for each of the base station 180/UE 104. The transmit
and receive directions for the base station 180 may or may not be
the same. The transmit and receive directions for the UE 104 may or
may not be the same.
The EPC 160 may include a Mobility Management Entity (MME) 162,
other MMEs 164, a Serving Gateway 166, a Multimedia Broadcast
Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service
Center (BM-SC) 170, and a Packet Data Network (PDN) Gateway 172.
The MME 162 may be in communication with a Home Subscriber Server
(HSS) 174. The MME 162 is the control node that processes the
signaling between the UEs 104 and the EPC 160. Generally, the MME
162 provides bearer and connection management. All user Internet
protocol (IP) packets are transferred through the Serving Gateway
166, which itself is connected to the PDN Gateway 172. The PDN
Gateway 172 provides UE IP address allocation as well as other
functions. The PDN Gateway 172 and the BM-SC 170 are connected to
the IP Services 176. The IP Services 176 may include the Internet,
an intranet, an IP Multimedia Subsystem (IMS), a PS Streaming
Service, and/or other IP services. The BM-SC 170 may provide
functions for MBMS user service provisioning and delivery. The
BM-SC 170 may serve as an entry point for content provider MBMS
transmission, may be used to authorize and initiate MBMS Bearer
Services within a public land mobile network (PLMN), and may be
used to schedule MBMS transmissions. The MBMS Gateway 168 may be
used to distribute MBMS traffic to the base stations 102 belonging
to a Multicast Broadcast Single Frequency Network (MBSFN) area
broadcasting a particular service, and may be responsible for
session management (start/stop) and for collecting eMBMS related
charging information.
The 5GC 190 may include a Access and Mobility Management Function
(AMF) 192, other AMFs 193, a Session Management Function (SMF) 194,
and a User Plane Function (UPF) 195. The AMF 192 may be in
communication with a Unified Data Management (UDM) 196. The AMF 192
is the control node that processes the signaling between the UEs
104 and the 5GC 190. Generally, the AMF 192 provides QoS flow and
session management. All user Internet protocol (IP) packets are
transferred through the UPF 195. The UPF 195 provides UE IP address
allocation as well as other functions. The UPF 195 is connected to
the IP Services 197. The IP Services 197 may include the Internet,
an intranet, an IP Multimedia Subsystem (IMS), a PS Streaming
Service, and/or other IP services.
The base station may also be referred to as a gNB, Node B, evolved
Node B (eNB), an access point, a base transceiver station, a radio
base station, a radio transceiver, a transceiver function, a basic
service set (BSS), an extended service set (ESS), a transmit
reception point (TRP), or some other suitable terminology. The base
station 102 provides an access point to the EPC 160 or 5GC 190 for
a UE 104. Examples of UEs 104 include a cellular phone, a smart
phone, a session initiation protocol (SIP) phone, a laptop, a
personal digital assistant (PDA), a satellite radio, a global
positioning system, a multimedia device, a video device, a digital
audio player (e.g., MP3 player), a camera, a game console, a
tablet, a smart device, a wearable device, a vehicle, an electric
meter, a gas pump, a large or small kitchen appliance, a healthcare
device, an implant, a sensor/actuator, a display, or any other
similar functioning device. Some of the UEs 104 may be referred to
as IoT devices (e.g., parking meter, gas pump, toaster, vehicles,
heart monitor, etc.). The UE 104 may also be referred to as a
station, a mobile station, a subscriber station, a mobile unit, a
subscriber unit, a wireless unit, a remote unit, a mobile device, a
wireless device, a wireless communications device, a remote device,
a mobile subscriber station, an access terminal, a mobile terminal,
a wireless terminal, a remote terminal, a handset, a user agent, a
mobile client, a client, or some other suitable terminology.
Referring again to FIG. 1, in certain aspects, the UE 104 may
include an assistance information component 198 configured to
transmit UE configuration parameter(s) to base station 102/180
comprising at least one preferred parameter for a UE configuration,
e.g., in addition to a preferred setting for a delay budget report
and/or to receives a configuration from the base station based, at
least in part, on the UE configuration parameter(s) transmitted to
the base station 102/180. Similarly, the base station 102/180 may
comprise an assistance information component 199 configured to
receive UE configuration parameter(s) from UE 104 comprising at
least one preferred parameter for a UE configuration, e.g., in
addition to a preferred setting for a delay budget report and/or to
configure the UE using the UE configuration parameter(s) received
from the UE 104. Although examples may be focused on 5G NR, the
concepts described herein may be applicable to other similar areas,
such as LTE, LTE-A, CDMA, GSM, and other wireless technologies.
FIG. 2A is a diagram 200 illustrating an example of a first
subframe within a 5G/NR frame structure. FIG. 2B is a diagram 230
illustrating an example of DL channels within a 5G/NR subframe.
FIG. 2C is a diagram 250 illustrating an example of a second
subframe within a 5G/NR frame structure. FIG. 2D is a diagram 280
illustrating an example of UL channels within a 5G/NR subframe. The
5G/NR frame structure may be FDD in which for a particular set of
subcarriers (carrier system bandwidth), subframes within the set of
subcarriers are dedicated for either DL or UL, or may be TDD in
which for a particular set of subcarriers (carrier system
bandwidth), subframes within the set of subcarriers are dedicated
for both DL and UL. In the examples provided by FIGS. 2A, 2C, the
5G/NR frame structure is assumed to be TDD, with subframe 4 being
configured with slot format 28 (with mostly DL), where D is DL, U
is UL, and X is flexible for use between DL/UL, and subframe 3
being configured with slot format 34 (with mostly UL). While
subframes 3, 4 are shown with slot formats 34, 28, respectively,
any particular subframe may be configured with any of the various
available slot formats 0-61. Slot formats 0, 1 are all DL, UL,
respectively. Other slot formats 2-61 include a mix of DL, UL, and
flexible symbols. UEs are configured with the slot format
(dynamically through DL control information (DCI), or
semi-statically/statically through radio resource control (RRC)
signaling) through a received slot format indicator (SFI). Note
that the description infra applies also to a 5G/NR frame structure
that is TDD.
Other wireless communication technologies may have a different
frame structure and/or different channels. A frame (10 ms) may be
divided into 10 equally sized subframes (1 ms). Each subframe may
include one or more time slots. Subframes may also include
mini-slots, which may include 7, 4, or 2 symbols. Each slot may
include 7 or 14 symbols, depending on the slot configuration. For
slot configuration 0, each slot may include 14 symbols, and for
slot configuration 1, each slot may include 7 symbols. The symbols
on DL may be cyclic prefix (CP) OFDM (CP-OFDM) symbols. The symbols
on UL may be CP-OFDM symbols (for high throughput scenarios) or
discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbols
(also referred to as single carrier frequency-division multiple
access (SC-FDMA) symbols) (for power limited scenarios; limited to
a single stream transmission). The number of slots within a
subframe is based on the slot configuration and the numerology. For
slot configuration 0, different numerologies .mu.0 to 5 allow for
1, 2, 4, 8, 16, and 32 slots, respectively, per subframe. For slot
configuration 1, different numerologies 0 to 2 allow for 2, 4, and
8 slots, respectively, per subframe. Accordingly, for slot
configuration 0 and numerology .mu., there are 14 symbols/slot and
2.sup..mu. slots/subframe. The subcarrier spacing and symbol
length/duration are a function of the numerology. The subcarrier
spacing may be equal to 2.sup..mu.*15 kKz, where .mu. is the
numerology 0 to 5. As such, the numerology .mu.=0 has a subcarrier
spacing of 15 kHz and the numerology .mu.=5 has a subcarrier
spacing of 480 kHz. The symbol length/duration is inversely related
to the subcarrier spacing. FIGS. 2A-2D provide an example of slot
configuration 0 with 14 symbols per slot and numerology .mu.=0 with
1 slot per subframe. The subcarrier spacing is 15 kHz and symbol
duration is approximately 66.7 .mu.s.
A resource grid may be used to represent the frame structure. Each
time slot includes a resource block (RB) (also referred to as
physical RBs (PRBs)) that extends 12 consecutive subcarriers. The
resource grid is divided into multiple resource elements (REs). The
number of bits carried by each RE depends on the modulation
scheme.
As illustrated in FIG. 2A, some of the REs carry reference (pilot)
signals (RS) for the UE. The RS may include demodulation RS (DM-RS)
(indicated as R.sub.x for one particular configuration, where 100x
is the port number, but other DM-RS configurations are possible)
and channel state information reference signals (CSI-RS) for
channel estimation at the UE. The RS may also include beam
measurement RS (BRS), beam refinement RS (BRRS), and phase tracking
RS (PT-RS).
FIG. 2B illustrates an example of various DL channels within a
subframe of a frame. The physical downlink control channel (PDCCH)
carries DCI within one or more control channel elements (CCEs),
each CCE including nine RE groups (REGs), each REG including four
consecutive REs in an OFDM symbol. A primary synchronization signal
(PSS) may be within symbol 2 of particular subframes of a frame.
The PSS is used by a UE 104 to determine subframe/symbol timing and
a physical layer identity. A secondary synchronization signal (SSS)
may be within symbol 4 of particular subframes of a frame. The SSS
is used by a UE to determine a physical layer cell identity group
number and radio frame timing. Based on the physical layer identity
and the physical layer cell identity group number, the UE can
determine a physical cell identifier (PCI). Based on the PCI, the
UE can determine the locations of the aforementioned DM-RS. The
physical broadcast channel (PBCH), which carries a master
information block (MIB), may be logically grouped with the PSS and
SSS to form a synchronization signal (SS)/PBCH block. The MIB
provides a number of RBs in the system bandwidth and a system frame
number (SFN). The physical downlink shared channel (PDSCH) carries
user data, broadcast system information not transmitted through the
PBCH such as system information blocks (SIBs), and paging
messages.
As illustrated in FIG. 2C, some of the REs carry DM-RS (indicated
as R for one particular configuration, but other DM-RS
configurations are possible) for channel estimation at the base
station. The UE may transmit DM-RS for the physical uplink control
channel (PUCCH) and DM-RS for the physical uplink shared channel
(PUSCH). The PUSCH DM-RS may be transmitted in the first one or two
symbols of the PUSCH. The PUCCH DM-RS may be transmitted in
different configurations depending on whether short or long PUCCHs
are transmitted and depending on the particular PUCCH format used.
Although not shown, the UE may transmit sounding reference signals
(SRS). The SRS may be used by a base station for channel quality
estimation to enable frequency-dependent scheduling on the UL.
FIG. 2D illustrates an example of various UL channels within a
subframe of a frame. The PUCCH may be located as indicated in one
configuration. The PUCCH carries uplink control information (UCI),
such as scheduling requests, a channel quality indicator (CQI), a
precoding matrix indicator (PMI), a rank indicator (RI), and HARQ
ACK/NACK feedback. The PUSCH carries data, and may additionally be
used to carry a buffer status report (BSR), a power headroom report
(PHR), and/or UCI.
FIG. 3 is a block diagram of a base station 310 in communication
with a UE 350 in an access network. In the DL, IP packets from the
EPC 160 may be provided to a controller/processor 375. The
controller/processor 375 implements layer 3 and layer 2
functionality. Layer 3 includes a radio resource control (RRC)
layer, and layer 2 includes a packet data convergence protocol
(PDCP) layer, a radio link control (RLC) layer, and a medium access
control (MAC) layer. The controller/processor 375 provides RRC
layer functionality associated with broadcasting of system
information (e.g., MIB, SIBs), RRC connection control (e.g., RRC
connection paging, RRC connection establishment, RRC connection
modification, and RRC connection release), inter radio access
technology (RAT) mobility, and measurement configuration for UE
measurement reporting; PDCP layer functionality associated with
header compression/decompression, security (ciphering, deciphering,
integrity protection, integrity verification), and handover support
functions; RLC layer functionality associated with the transfer of
upper layer packet data units (PDUs), error correction through ARQ,
concatenation, segmentation, and reassembly of RLC service data
units (SDUs), re-segmentation of RLC data PDUs, and reordering of
RLC data PDUs; and MAC layer functionality associated with mapping
between logical channels and transport channels, multiplexing of
MAC SDUs onto transport blocks (TBs), demultiplexing of MAC SDUs
from TBs, scheduling information reporting, error correction
through HARQ, priority handling, and logical channel
prioritization. In certain aspects, the base station 310 may
comprise an assistance information component 399 configured to
receive UE configuration parameter(s) from UE 350 comprising at
least one preferred parameter for a UE configuration, e.g., in
addition to a preferred setting for a delay budget report and/or to
configure the UE using the UE configuration parameter(s) received
from the UE 350.
The transmit (TX) processor 316 and the receive (RX) processor 370
implement layer 1 functionality associated with various signal
processing functions. Layer 1, which includes a physical (PHY)
layer, may include error detection on the transport channels,
forward error correction (FEC) coding/decoding of the transport
channels, interleaving, rate matching, mapping onto physical
channels, modulation/demodulation of physical channels, and MIMO
antenna processing. The TX processor 316 handles mapping to signal
constellations based on various modulation schemes (e.g., binary
phase-shift keying (BPSK), quadrature phase-shift keying (QPSK),
M-phase-shift keying (M-PSK), M-quadrature amplitude modulation
(M-QAM)). The coded and modulated symbols may then be split into
parallel streams. Each stream may then be mapped to an OFDM
subcarrier, multiplexed with a reference signal (e.g., pilot) in
the time and/or frequency domain, and then combined together using
an Inverse Fast Fourier Transform (IFFT) to produce a physical
channel carrying a time domain OFDM symbol stream. The OFDM stream
is spatially precoded to produce multiple spatial streams. Channel
estimates from a channel estimator 374 may be used to determine the
coding and modulation scheme, as well as for spatial processing.
The channel estimate may be derived from a reference signal and/or
channel condition feedback transmitted by the UE 350. Each spatial
stream may then be provided to a different antenna 320 via a
separate transmitter 318TX. Each transmitter 318TX may modulate an
RF carrier with a respective spatial stream for transmission.
At the UE 350, each receiver 354RX receives a signal through its
respective antenna 352. Each receiver 354RX recovers information
modulated onto an RF carrier and provides the information to the
receive (RX) processor 356. The TX processor 368 and the RX
processor 356 implement layer 1 functionality associated with
various signal processing functions. The RX processor 356 may
perform spatial processing on the information to recover any
spatial streams destined for the UE 350. If multiple spatial
streams are destined for the UE 350, they may be combined by the RX
processor 356 into a single OFDM symbol stream. The RX processor
356 then converts the OFDM symbol stream from the time-domain to
the frequency domain using a Fast Fourier Transform (FFT). The
frequency domain signal comprises a separate OFDM symbol stream for
each subcarrier of the OFDM signal. The symbols on each subcarrier,
and the reference signal, are recovered and demodulated by
determining the most likely signal constellation points transmitted
by the base station 310. These soft decisions may be based on
channel estimates computed by the channel estimator 358. The soft
decisions are then decoded and deinterleaved to recover the data
and control signals that were originally transmitted by the base
station 310 on the physical channel. The data and control signals
are then provided to the controller/processor 359, which implements
layer 3 and layer 2 functionality.
The controller/processor 359 can be associated with a memory 360
that stores program codes and data. The memory 360 may be referred
to as a computer-readable medium. In the UL, the
controller/processor 359 provides demultiplexing between transport
and logical channels, packet reassembly, deciphering, header
decompression, and control signal processing to recover IP packets
from the EPC 160. The controller/processor 359 is also responsible
for error detection using an ACK and/or NACK protocol to support
HARQ operations.
Similar to the functionality described in connection with the DL
transmission by the base station 310, the controller/processor 359
provides RRC layer functionality associated with system information
(e.g., MIB, SIBs) acquisition, RRC connections, and measurement
reporting; PDCP layer functionality associated with header
compression/decompression, and security (ciphering, deciphering,
integrity protection, integrity verification); RLC layer
functionality associated with the transfer of upper layer PDUs,
error correction through ARQ, concatenation, segmentation, and
reassembly of RLC SDUs, re-segmentation of RLC data PDUs, and
reordering of RLC data PDUs; and MAC layer functionality associated
with mapping between logical channels and transport channels,
multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from
TBs, scheduling information reporting, error correction through
HARQ, priority handling, and logical channel prioritization. In
certain aspects, the UE 350 may include an assistance information
component 398 configured to transmit UE configuration parameter(s)
to base station 310 comprising at least one preferred parameter for
a UE configuration, e.g., in addition to a preferred setting for a
delay budget report and/or to receives a configuration from the
base station based, at least in part, on the UE configuration
parameter(s) transmitted to the base station 310.
Channel estimates derived by a channel estimator 358 from a
reference signal or feedback transmitted by the base station 310
may be used by the TX processor 368 to select the appropriate
coding and modulation schemes, and to facilitate spatial
processing. The spatial streams generated by the TX processor 368
may be provided to different antenna 352 via separate transmitters
354TX. Each transmitter 354TX may modulate an RF carrier with a
respective spatial stream for transmission.
The UL transmission is processed at the base station 310 in a
manner similar to that described in connection with the receiver
function at the UE 350. Each receiver 318RX receives a signal
through its respective antenna 320. Each receiver 318RX recovers
information modulated onto an RF carrier and provides the
information to a RX processor 370.
The controller/processor 375 can be associated with a memory 376
that stores program codes and data. The memory 376 may be referred
to as a computer-readable medium. In the UL, the
controller/processor 375 provides demultiplexing between transport
and logical channels, packet reassembly, deciphering, header
decompression, control signal processing to recover IP packets from
the UE 350. IP packets from the controller/processor 375 may be
provided to the EPC 160. The controller/processor 375 is also
responsible for error detection using an ACK and/or NACK protocol
to support HARQ operations.
A network may control many aspects of the radio configurations for
a UE. However, a UE has a better understanding of some factors than
the base station. For example, the UE is aware of the UE's power
status, e.g., including an anticipated battery life. The UE is also
aware of user changes to power preferences, e.g., when a user
switches to a low power mode in a user menu at the UE. A UE may
also be aware that an application is active or is anticipated to be
active. Aspects presented herein enable a network to make more
effective radio configurations for a particular UE by having the UE
share information about the UE, including recommendations and/or
preferences, with the base station. For example, the UE may provide
recommendations regarding preferred radio configuration parameters
based on information known at the UE that is not known by the base
station. The base station may then determine radio configurations
for the UE based on an increased understanding of factors and
preferences for the UE.
FIG. 4 illustrates an example communication flow 400 between a base
station 402 and a UE 404 in accordance with the aspects presented
herein. As illustrated at 407, the UE 404 may select parameters for
radio configurations for the UE. The selection may be based on
different purposes. The UE 404 may classify UE configuration
parameters into different categories based on different purposes or
user preferences. One example purpose may be a power saving
purpose. Other examples of purposes may include performance,
improved communication, etc. For example, the UE 404 may signal
certain DRX parameters when the UE measures traffic patterns and
estimates an optimal set of DRX parameters based on the measured
traffic. As another example, the UE 404 may signal beam management
parameters when the UE 404 will adjust its receiving beam or
transmission beam. Thus, the selected parameters may correspond to
preferences or recommendations from the UE 404 for UE radio
parameters. At 409, the UE may indicate the selected parameters,
from 405, to the base station 402. The selected parameters/UE
preferences for radio configurations may be referred to as
assistance information, such as UE assistance information and may
include UE configuration parameter(s). The assistance information
may inform the base station that the UE 404 would prefer to
prioritize power savings over performance, for example. When a user
switches the UE 404 to a lower power mode, which will be followed
by the UE component's including the modem, the UE 404 may indicate
to the base station a preference for power savings over performance
in the UE's radio configurations. As well, based on a power status
of the UE 404, the UE 404 may indicate preferences to the base
station 402 that will affect power savings. As well, the UE 404 may
select the parameters based on a knowledge of which applications
are active at the UE 404 and/or will become active at the UE
404.
The UE 404 may provide the assistance information to the base
station, such as in an Information Element (IE). For example, the
assistance information may be included in a UE Assistance IE (UAI),
e.g., in addition to a UE's preferred setting for a delay budget
report. The delay budget report may be used by the UE 404 to
indicate a UE preferred adjustment to a connected mode DRX coverage
enhancement configuration.
There may be various different parameters that a UE 404 may
indicate to the base station 402 in the assistance information,
e.g. comprised in the UAI. The UE 404 may send its preferred values
of each of the parameters to the base station 402, e.g., in a
single UAI. In another example, the UE 404 may send a subset of the
preferred parameters to the base station 402 in a first UAI. The UE
404 may send another subset of the preferred parameters to the base
station 402 in another UAI. The UE 404 may send a single preferred
parameter or indication to the base station 402 in the UAI. Thus,
the UE 404 may communicate assistance information to the base
station 402 in a grouping and order determined by the UE 404.
The base station 402 may use the assistance information, at 411, to
determine the radio configurations for the UE 404. The assistance
information may be one of various factors considered by the base
station 402 in configuring the UE 404. The base station 402 might
not be constrained by the preferences indicated to the base station
at 409, but may be free to use the information to configure the UE
404 in a more effective manner. As well, the assistance information
may indicate to the base station 402 that the UE 404 would prefer
to operate using a lower power mode, and the base station 402 may
determine the way to achieve the lower power mode through the UE's
radio configurations. At 413, the base station 402 may configure
the UE 404 with the configuration(s) determined at 411 using the
assistance information provided by the UE. The base station 402 and
UE 404 may then implement the configuration(s) in communicating
with each other. As illustrated at 415, the base station 402 may
communicate uplink and/or downlink communication with the UE 404
based on the configuration of the UE at 413.
As illustrated at 403, the base station 402 may broadcast, or
otherwise transmit, a range of available parameters for UE
selection. For example, rather than broadcasting the range of
available parameters, the base station 402 may indicate range(s) of
available parameter(s) to the UE 404 in dedicated RRC signaling for
the UE 404. Thus, the base station 402 may indicate to the UE 404
the ranges that are possible and/or whether the base station 402
supports the UE selection of preferred radio configuration
parameters. The network may determine whether to broadcast the
available ranges and may also determine which available ranges to
broadcast. For example, a base station 402 may broadcast values of
all potential parameters or only a subset of the potential
parameters. When a base station 402 does not broadcast the
available range(s), it may indicate to the UE 404 that UE selection
from among those parameter is not supported by the base station
402. Thus, at 405, the UE 404 may determine whether or not UE
selection/recommendation of assistance information is supported by
the base station 402 based on whether or not the UE 404 receives an
indication of the range(s) of available parameter(s) from the base
station. When the UE 404 does not receive any range(s) of available
parameter(s) from the base station 402, the UE 404 may determine
that the UE does not support the UE selection of preferred
parameter values. Thus, the UE 404 may refrain from selecting
preferred values and may refrain from sending assistance
information to the base station 402.
If the UE 404 receives the range(s) of available parameter(s) from
the base station 402, at 403, the UE may select, at 407, a value
from among the available ranges indicated by the base station 402.
Thus, the UE 404 may send back to the base station 402, in the
assistance information 409, an indication of a value/parameter
selected from among the range of available parameter(s) broadcast
by the base station 402. The UE 404 may use an index comprised in a
message to the base station 402 to indicate the selected value from
within the available range(s). For example, the index may be
comprised in a UAI. The UE 404 may send back an index for each
parameter for which the base station 402 provided an available
range. The UE 404 may send back indexes for a subset of parameters
for which the base station 402 provided available ranges. The UE
404 may even send back an index for a single parameter from among
the parameters for which the base station 402 provided available
ranges. The UE 404 may determine for which parameters from a
plurality of possible parameters, the UE 404 will provide
assistance information to the base station 402.
The assistance information 409 provided by the UE 404 to the base
station 402 may comprise preferences/recommendation regarding any
of various parameters that affect a UE's radio configuration(s).
For example, the indicated parameters may comprise any combination
of parameters related to the UE's DRX configuration, parameters
related to the UE's bandwidth configuration, parameters related to
a data channels for the UE 404, parameters related to a control
channel for the UE 404, parameters related to beam management for
the UE 404, and/or parameters related to the UE's power status.
For example, the indicated parameters may comprise any combination
of parameters related to the UE's DRX configuration, such as a DRX
on duration, a DRX inactivity timer, a DRX long cycle, a DRX short
cycle, a DRX short cycle timer, a DRX slot offset, an average data
rate for traffic for the UE 404, an average Transport Block (TB)
size for traffic for the UE 404, or an average burst duration for
traffic for the UE 404, among other examples. Such parameters
related to the UE's DRX configuration may be sent in addition to,
or separately from, a delay budget report that may indicate a UE
preference to adjust to a connected mode DRX or a coverage
enhancement configuration. For example, the delay budget report may
indicate that the UE 404 would prefer to transition to a long DRX
cycle. The assistance information presented herein may provide
different/additional parameters relating to a UE's DRX
configuration. For example, by providing information about
preferences or recommendations for the UE's DRX configuration, the
UE 404 may indicate to the base station 402 whether the UE 404 is
prioritizing power savings or performance. The base station 402 may
then configure the UE 404 for DRX, e.g., at 413, with an
understanding of which aspect the UE 404 considers more important
at the time. The base station 402 may use at least one of the
indicated parameters in configuring the UE 404 for DRX, or the base
station 402 may adjust a DRX parameter based on the assistance
information from the UE 404.
As another example, the indicated parameters may comprise any
combination of parameters related to the UE's bandwidth
configurations. For example, the UE may indicate to the base
station a preference or recommendation for aggregated bandwidth
across all serving cells for the UE 404, such as for serving cells
for different carrier types. The UE 404 may indicate to the base
station 402 a preferred or recommended number of downlink carriers
and/or uplink carriers for the UE 404. The UE 404 may indicate to
the base station 402 a preference/recommendation about a carrier
type, e.g., for carrier selection between FR1 and FR2. The base
station 402 may determine a bandwidth configuration for the UE 404
using the indicated bandwidth preferences from the UE 404. The base
station 402 may use at least one of the indicated parameters in the
bandwidth configuration for the UE 404, or the base station 402 may
adjust a parameter of the UE's bandwidth configuration based on the
assistance information from the UE 404.
As another example, the indicated parameters may comprise any
combination of parameters related to a data channel for the UE,
such as PUSCH and/or PDSCH for the UE 404. For example, the UE 404
may indicate a preference or recommendation about a maximum TB size
that the UE 404 can handle in PUSCH and/or PDSCH. The base station
402 may determine a configuration for the UE 404 for PUSCH/PDSCH
based on the assistance information provided by the UE 404, e.g.,
for communication based on a TB size that does not exceed the
maximum indicated by the UE 404.
As another example, the indicated parameters may comprise any
combination of parameters related to a control channel for the UE
404, e.g., PDCCH for the UE 404. The UE 404 may indicate a
preference/recommendation for a particular TDD pattern for PDCCH.
The UE 404 may indicate a preference/recommendation for a
particular periodicity for PDCCH monitoring. A higher monitoring
periodicity may require larger amounts of power at the UE 404. The
UE 404 may indicate a preference/recommendation for HARQ feedback
from the UE 404, e.g., information about a HARQ processing
timeline. The base station 402 may determine a configuration for
the UE 404 for PDCCH based on the assistance information provided
by the UE 404, e.g., by selecting the TDD pattern, monitoring
periodicity, and/or HARQ parameters using the assistance
information provided by the UE 404.
As another example, the indicated parameters may comprise any
combination of parameters related to beam management for the UE
404. For example, the UE 404 may indicate a
preference/recommendation for an antenna panel at the UE 404 and/or
the base station 402, e.g., an antenna panel or a subset of antenna
panels from among a plurality of possible antenna panels. The UE
404 may indicate a preference/recommendation for mobility
parameters for the UE 404. The UE 404 may indicate information
about the UE 404 that may be helpful to the base station 402 in
performing beam management. The UE 404 may provide a trajectory of
movement of the UE 404 that may assist the base station 402 in
selecting beams to use to transmit and/or receive communication
with the UE 404, e.g., as described in connection with 182 in FIG.
1. The base station 402 may determine beam management
configurations based on the assistance information provided by the
UE 404, e.g., with beam selection using the assistance information
from the UE 404 regarding antenna panel(s) and/or mobility
parameters for the UE 404.
As another example, the indicated parameters may comprise any
combination of parameters related to the UE's power status. For
example, the assistance information may indicate a battery level
for the UE 404. The battery level may help the base station 402 to
understand whether battery savings are important for the UE 404
when determining radio configurations for the UE 404. The
assistance information may indicate a modem thermal level for the
UE 404. If the modem has a temperature above a certain level, the
base station 402 may determine that the UE 404 would benefit from a
lower power mode that would decrease activity and the UE's modem in
order to help reduce the temperature of the modem. The assistance
information may indicate a power preference indication. This may
enable the UE 404 to communicate a power preference to the base
station 402, e.g., whether the UE 404 prefers a normal mode or a
lower power mode, using a binary indication. The base station 402
may use the UE's indication to determine whether to configure the
UE 404 to communicate using lower power configuration
parameters.
FIG. 5 is a flowchart 500 of a method of wireless communication.
The method may be performed by a UE or a component of a UE (such as
UE 104, 350, 404, 950; the apparatus 602, 602'; the processing
system 1114, which may include memory and which may be an entire UE
350 or a component of a UE 350, such as the TX processor 368, the
RX processor 356, and/or the controller/processor 359). Optional
aspects are illustrated with a dashed line. The method enables more
effective configurations for a UE by having the UE provide
assistance information to the base station that can be used by the
base station to configured the UE.
At 508, the UE transmits at least one UE configuration parameter to
a base station comprising at least one preferred parameter for a UE
configuration, e.g., a described in connection with 409 in FIG. 4.
For example, the UE configuration parameter may be transmitted,
e.g., by the assistance information component 614 of the apparatus
602 in FIG. 6. The UE configuration parameter(s) may be indicated
by the UE in an IE to the base station. For example, the UE
configuration parameter(s) may be indicated in a UAI, e.g., in
addition to a preferred setting for a delay budget report that
indicates whether the UE prefers a long DRX mode.
The UE configuration parameter(s) may comprise an indication for a
preferred parameter for at least one of a DRX on duration, a DRX
inactivity timer, a DRX long cycle, a DRX short cycle, a DRX short
cycle timer, a DRX slot offset, an average data rate, an average
transport block size, or an average burst duration. For example,
the UE configuration parameter(s) may comprise an indication for a
preferred bandwidth configuration for the UE, e.g., indicating at
least one of an aggregated bandwidth across serving cells for
different types of carriers, a downlink/uplink bandwidth part index
for a serving cell, a number of uplink carriers, a number of
downlink carriers. The UE configuration parameter(s) may comprise
an indication for a preferred data channel parameter, e.g.,
indicating a maximum transport block size for a downlink data
channel or an uplink data channel. The UE configuration
parameter(s) may comprise an indication for a preferred control
channel parameter, e.g., comprising at least one of a TDD pattern,
a control channel monitoring periodicity, or a processing timeline
related to feedback processing. The UE configuration parameter(s)
may comprise an indication for a beam management parameter, e.g.,
comprising at least one of a preferred antenna panel, a preferred
beam, information about a trajectory of the UE, or a mobility
parameter for the UE. The UE configuration parameter(s) may
indicate power status information for the UE, e.g., at least one of
a battery level, a thermal level of a modem, or an indication of a
power preference for the UE.
At 510, the UE receives a configuration from the base station
based, at least in part, on the UE configuration parameter(s)
transmitted to the base station. The configuration may be received,
for example, by the configuration component 616 of the apparatus
602 in FIG. 6. As described in connection with FIG. 4, the UE
configuration parameter(s) may inform the base station about
preferred parameters at the UE, e.g., for a power savings, for
higher performance, etc. The base station may determine the manner
in which the desired result will be achieved and may configure the
UE accordingly. The base station may use a particular parameter
indicated in the UE configuration parameter(s) from the UE or may
use the UE configuration parameter(s) to determine/adjust an
existing parameter determined by the base station. Thus, the
network may configure a set of parameters for a UE, and during
operation, a UE may suggest preferred values for the
parameters.
As illustrated at 512, the UE may use the configuration from the
base station to communicate with the base station, e.g., to
transmit uplink communication and/or to receive downlink
communication. For example, in the apparatus 602 in FIG. 6, the
uplink communication may be transmitted by the transmission
component 606 using the configuration, or downlink communication
may be received by the reception component 604 using the
configuration.
As illustrated at 502, the UE may receive a range of available
parameters from the base station, e.g., as described in connection
with 403. The range of available parameters may be received, e.g.,
by the range component 608 of the apparatus 602 in FIG. 6. The
range of available parameters may be received in a broadcast from
the base station. In another example, the range of available
parameters may be received in a dedicated RRC signaling for the UE.
The UE may then select a parameter for the UE configuration
parameter(s), at 506, from among the range of available parameters
received from the base station, e.g., as described in connection
with 407 in FIG. 4. For example, the selection component 612 of the
apparatus 602 in FIG. 6 may perform the selection. The UE
configuration parameter(s) may comprise an index corresponding to a
value selected from among the range of available parameters
received from the base station. In another example in which the UE
does not receive a range of available parameter from the base
station, at 502, the selection of parameters, at 506, may be made
independently by the UE or in another manner.
The broadcast, or other signaling, of ranges of available
parameters from a base station may be used by the UE to determine
whether the base station supports UE selection of the parameters.
Thus, at 504, the UE may determine that UE indication of the UE
configuration parameter(s) is supported by the base station based
on receiving the range of available parameters from the base
station, e.g., as described in connection with 405 in FIG. 4. For
example, the determination component 610 of the apparatus 602 in
FIG. 6 may perform the determination.
FIG. 6 is a conceptual data flow diagram 600 illustrating the data
flow between different means/components in an example apparatus
602. The apparatus may be a UE or a component of a UE in
communication with a base station 650. The apparatus includes a
reception component 604 that receives downlink communication from
base station 650 and a transmission component 606 that transmits
uplink communication to the base station 650. The apparatus may
include an assistance information component 614 configured to
transmit UE configuration parameter(s) to a base station comprising
at least one preferred parameter for a UE configuration, e.g., in
addition to a preferred setting for a delay budget report, as
described in connection with 409, 508. The apparatus may include a
configuration component 616 configured to receive a configuration
from the base station based, at least in part, on the UE
configuration parameter(s) transmitted to the base station, as
described in connection with 413, 510. The apparatus may include a
range component 608 configured to receive a range of available
parameters from the base station, e.g., as described in connection
with 403, 502. The apparatus may include a selection component 612
configured to select a parameter for the UE configuration
parameter(s) from among the range of available parameters received
from the base station, as described in connection with 407, 506.
The apparatus may include a determination component 610 configured
to determine that UE indication of the UE configuration
parameter(s) is supported by the base station based on receiving
the range of available parameters from the base station, e.g., as
described in connection with 405, 504. The apparatus may
communicate, using the reception component 604 and/or transmission
component 606, based on the configuration received from the base
station.
The apparatus 602 may include additional components that perform
each of the blocks of the algorithm in the aforementioned flowchart
of FIG. 5 and aspects of the communication flow in FIG. 4. As such,
each block in the aforementioned flowchart of FIG. 5 and aspects of
the communication flow in FIG. 4 may be performed by a component
and the apparatus 602 may include one or more of those components.
The components may be one or more hardware components specifically
configured to carry out the stated processes/algorithm, implemented
by a processor configured to perform the stated
processes/algorithm, stored within a computer-readable medium for
implementation by a processor, or some combination thereof.
FIG. 7 is a diagram 700 illustrating an example of a hardware
implementation for an apparatus 602' employing a processing system
714. The processing system 714 may be implemented with a bus
architecture, represented generally by the bus 724. The bus 724 may
include any number of interconnecting buses and bridges depending
on the specific application of the processing system 714 and the
overall design constraints. The bus 724 links together various
circuits including one or more processors and/or hardware
components, represented by the processor 704, the components 604,
606, 608, 610, 612, 613, 616, and the computer-readable
medium/memory 706. The bus 724 may also link various other circuits
such as timing sources, peripherals, voltage regulators, and power
management circuits, which are well known in the art, and
therefore, will not be described any further.
The processing system 714 may be coupled to a transceiver 710. The
transceiver 710 is coupled to one or more antennas 720. The
transceiver 710 provides a means for communicating with various
other apparatus over a transmission medium. The transceiver 710
receives a signal from the one or more antennas 720, extracts
information from the received signal, and provides the extracted
information to the processing system 714, specifically the
reception component 604. In addition, the transceiver 710 receives
information from the processing system 714, specifically the
transmission component 606, and based on the received information,
generates a signal to be applied to the one or more antennas 720.
The processing system 714 includes a processor 704 coupled to a
computer-readable medium/memory 706. The processor 704 is
responsible for general processing, including the execution of
software stored on the computer-readable medium/memory 706. The
software, when executed by the processor 704, causes the processing
system 714 to perform the various functions described supra for any
particular apparatus. The computer-readable medium/memory 706 may
also be used for storing data that is manipulated by the processor
704 when executing software. The processing system 714 further
includes at least one of the components 604, 606, 608, 610, 612,
613, 616. The components may be software components running in the
processor 704, resident/stored in the computer readable
medium/memory 706, one or more hardware components coupled to the
processor 704, or some combination thereof. The processing system
714 may be a component of the UE 350 and may include the memory 360
and/or at least one of the TX processor 368, the RX processor 356,
and the controller/processor 359. Alternatively, the processing
system 714 may be the entire UE (e.g., see 350 of FIG. 3).
In one configuration, the apparatus 602/602' for wireless
communication includes means for transmitting at least one UE
configuration parameter to a base station comprising at least one
preferred parameter for a UE configuration, e.g., in addition to a
preferred setting for a delay budget report (e.g., at least
assistance information component 614); and means for receiving a
configuration from the base station based, at least in part, on the
UE configuration parameter(s)transmitted to the base station (e.g.,
at least configuration component 616). The apparatus may include
means for receiving a range of available parameters from the base
station (e.g., at least range component 608). The apparatus may
include means for selecting a parameter for the UE configuration
parameter(s) from among the range of available parameters received
from the base station (e.g., at least selection component 612). The
apparatus may include means for determining that UE indication of
the UE configuration parameter(s) is supported by the base station
based on receiving the range of available parameters from the base
station (e.g., at least determination component 610). The
aforementioned means may be one or more of the aforementioned
components of the apparatus 602 and/or the processing system 714 of
the apparatus 602' configured to perform the functions recited by
the aforementioned means. As described supra, the processing system
714 may include the TX Processor 368, the RX Processor 356, and the
controller/processor 359. As such, in one configuration, the
aforementioned means may be the TX Processor 368, the RX Processor
356, and the controller/processor 359 configured to perform the
functions recited by the aforementioned means.
FIG. 8 is a flowchart 800 of a method of wireless communication.
The method may be performed by a base station or a component of a
base station (e.g., base station 102, 180, 310, 402, 650, the
apparatus 902, 902'; the processing system 1014, which may include
memory and which may be an entire base station 310 or a component
of a base station 310, such as the TX processor 316, the RX
processor 370, and/or the controller/processor 375) in
communication with a UE. Optional aspects are illustrated with a
dashed line. The method enables more effective configurations for a
UE by having the UE provide assistance information, e.g., including
UE configuration parameter(s), to the base station that can be used
by the base station to configured the UE.
At 804, the base station receives at least one UE configuration
parameter from a UE, the UE configuration parameter(s) comprising
at least one preferred parameter for a UE configuration, e.g., a
described in connection with 409 in FIG. 4. The reception of the UE
configuration parameter may be performed, for example, by the
assistance information component 908 of the apparatus 902 in FIG.
9, for example. The UE configuration parameter(s) may be received
by the base station in an IE from the UE. For example, the UE
configuration parameter(s) may be indicated in a UAI, e.g., in
addition to a preferred setting for a delay budget report that
indicates whether a UE prefers a long DRX mode.
The UE configuration parameter(s) may comprise an indication for a
preferred parameter for at least one of a DRX on duration, a DRX
inactivity timer, a DRX long cycle, a DRX short cycle, a DRX short
cycle timer, a DRX slot offset, an average data rate, an average
transport block size, or an average burst duration. For example,
the UE configuration parameter(s) may comprise an indication for a
preferred bandwidth configuration for the UE, e.g., indicating at
least one of an aggregated bandwidth across serving cells for
different types of carriers, a downlink/uplink bandwidth part index
for a serving cell, a number of uplink carriers, a number of
downlink carriers, or a carrier type. The UE configuration
parameter(s) may comprise an indication for a preferred data
channel parameter, e.g., indicating a maximum transport block size
for a downlink data channel or an uplink data channel. The UE
configuration parameter(s) may comprise an indication for a
preferred control channel parameter, e.g., comprising at least one
of a TDD pattern, a control channel monitoring periodicity, or a
processing timeline related to feedback processing. The UE
configuration parameter(s) may comprise an indication for a beam
management parameter, e.g., comprising at least one of a preferred
antenna panel, a preferred beam, information about a trajectory of
the UE, or a mobility parameter for the UE. The UE configuration
parameter(s) may indicate power status information for the UE,
e.g., at least one of a battery level, a thermal level of a modem,
or an indication of a power preference for the UE.
At 806, the base station configures the UE based, at least in part,
on the UE configuration parameter(s) received from the UE. The
configuration may be performed, e.g., by the configuration
component 910 of the apparatus 902 in FIG. 9. As described in
connection with FIG. 4, the UE configuration parameter(s) may
inform the base station about preferred parameters at the UE, e.g.,
for a power savings, for higher performance, etc. The base station
may determine the manner in which the desired result will be
achieved and may configure the UE accordingly. The base station may
use a particular parameter indicated in the UE configuration
parameter(s) from the UE or may use the UE configuration
parameter(s) to determine/adjust an existing parameter determined
by the base station. Thus, the network may configure a set of
parameters for a UE, and during operation, a UE may suggest
preferred values for the parameters.
As illustrated at 808, the base station may use the UE's
configuration to communicate with the UE, e.g., to transmit
downlink communication and/or to receive uplink communication. For
example, in the apparatus 902 in FIG. 9, the downlink communication
may be transmitted by the transmission component 906 using the
configuration using the UE's configuration, or uplink communication
may be received by the reception component 604 using the UE's
configuration.
As illustrated at 802, the UE may transmit a range of available
parameters from the base station, and the UE configuration
parameter(s) may comprise a parameter selected from among the range
of available parameters received from the base station, e.g., as
described in connection with 403 and 407 in FIG. 4. The range of
parameters may be transmitted, e.g., by the range component 912 of
the apparatus 902 in FIG. 9. The range of available parameters may
be broadcast from the base station. In another example, the base
station may indicate the range of available parameters to the UE in
dedicated RRC signaling for the UE. The UE configuration
parameter(s) from the UE may comprise an index corresponding to a
value selected from among the range of available parameters
transmitted from the base station, at 802. In another example in
which the base station does not transmit a range of available
parameter 802, the selection of parameters, at 506, may be made
independently by the UE. The presence or absence of a broadcast of
ranges of available parameters from a base station may indicate to
the UE whether the base station supports UE selection of the
parameters.
FIG. 9 is a conceptual data flow diagram 900 illustrating the data
flow between different means/components in an example apparatus
902. The apparatus may be a base station or a component of a base
station in communication with a UE 950. The apparatus includes a
reception component 904 that receives uplink communication from UE
950 and a transmission component 906 that transmits downlink
communication to the UE 950. The apparatus may include an
assistance information component 908 configured to receive at least
one UE configuration parameter from UE 950 comprising at least one
preferred parameter for a UE configuration, e.g., in addition to a
preferred setting for a delay budget report, e.g., as described in
connection with 409, 804. The apparatus may include a configuration
component 910 configured to configure the UE using the UE
configuration parameter(s) received from the UE, e.g., as described
in connection with 411, 413, and 806. The apparatus may include a
range component 912 configured to transmit a range of available
parameters from the base station, wherein the UE configuration
parameter(s) comprises a parameter selected from among the range of
available parameters received from the base station, e.g., as
described in connection with 403, 802. The reception component 904
and/or transmission component 906 may be configured to communicate
with the UE 950 based on the configuration configured by the
configuration component 910.
The apparatus may include additional components that perform each
of the blocks of the algorithm in the aforementioned flowchart of
FIG. 8 and aspects of the communication flow in FIG. 4. As such,
each block in the aforementioned flowchart of FIG. 8 and the
communication flow in FIG. 4 may be performed by a component and
the apparatus may include one or more of those components. The
components may be one or more hardware components specifically
configured to carry out the stated processes/algorithm, implemented
by a processor configured to perform the stated
processes/algorithm, stored within a computer-readable medium for
implementation by a processor, or some combination thereof.
FIG. 10 is a diagram 1000 illustrating an example of a hardware
implementation for an apparatus 902' employing a processing system
1014. The processing system 1014 may be implemented with a bus
architecture, represented generally by the bus 1024. The bus 1024
may include any number of interconnecting buses and bridges
depending on the specific application of the processing system 1014
and the overall design constraints. The bus 1024 links together
various circuits including one or more processors and/or hardware
components, represented by the processor 1004, the components 904,
906, 908, 910, 912, and the computer-readable medium/memory 1006.
The bus 1024 may also link various other circuits such as timing
sources, peripherals, voltage regulators, and power management
circuits, which are well known in the art, and therefore, will not
be described any further.
The processing system 1014 may be coupled to a transceiver 1010.
The transceiver 1010 is coupled to one or more antennas 1020. The
transceiver 1010 provides a means for communicating with various
other apparatus over a transmission medium. The transceiver 1010
receives a signal from the one or more antennas 1020, extracts
information from the received signal, and provides the extracted
information to the processing system 1014, specifically the
reception component 904. In addition, the transceiver 1010 receives
information from the processing system 1014, specifically the
transmission component 906, and based on the received information,
generates a signal to be applied to the one or more antennas 1020.
The processing system 1014 includes a processor 1004 coupled to a
computer-readable medium/memory 1006. The processor 1004 is
responsible for general processing, including the execution of
software stored on the computer-readable medium/memory 1006. The
software, when executed by the processor 1004, causes the
processing system 1014 to perform the various functions described
supra for any particular apparatus. The computer-readable
medium/memory 1006 may also be used for storing data that is
manipulated by the processor 1004 when executing software. The
processing system 1014 further includes at least one of the
components 904, 906, 908, 910, 912. The components may be software
components running in the processor 1004, resident/stored in the
computer readable medium/memory 1006, one or more hardware
components coupled to the processor 1004, or some combination
thereof. The processing system 1014 may be a component of the base
station 310 and may include the memory 376 and/or at least one of
the TX processor 316, the RX processor 370, and the
controller/processor 375. Alternatively, the processing system 1014
may be the entire base station (e.g., see base station 310).
In one configuration, the apparatus 902/902' for wireless
communication includes means for receiving at least one UE
configuration parameter from a UE comprising at least one preferred
parameter for a UE configuration, e.g., in addition to a preferred
setting for a delay budget report (e.g., at least assistance
information component 908); and means for configuring the UE using
the UE configuration parameter(s) received from the UE (e.g., at
least configuration component 910). The apparatus may include means
for transmitting a range of available parameters from the base
station, wherein the UE configuration parameter(s) comprises a
parameter selected from among the range of available parameters
received from the base station (e.g., at least range component
912). The aforementioned means may be one or more of the
aforementioned components of the apparatus 902 and/or the
processing system 1014 of the apparatus 902' configured to perform
the functions recited by the aforementioned means. As described
supra, the processing system 1014 may include the TX Processor 316,
the RX Processor 370, and the controller/processor 375. As such, in
one configuration, the aforementioned means may be the TX Processor
316, the RX Processor 370, and the controller/processor 375
configured to perform the functions recited by the aforementioned
means.
The following examples are illustrative only and aspects thereof
may be combined with aspects of other implementations or teachings
described herein, without limitation.
Example 1 is a method of wireless communication at a UE,
comprising: transmitting at least one UE configuration parameter to
a base station comprising at least one preferred parameter for a UE
configuration; and receiving a configuration from the base station
based, at least in part, on the at least one UE configuration
parameter transmitted to the base station.
In Example 2, the method of Example 1 further includes that the at
least one UE configuration parameter comprises an indication for a
preferred parameter for at least one of a DRX long cycle, a DRX
short cycle, a DRX inactivity timer, or a DRX short cycle
timer.
In Example 3, the method of Example 1 or 2 further includes that
the at least one UE configuration parameter comprises an indication
for a preferred parameter for at least one of a DRX on duration or
a DRX slot offset.
In Example 4, the method of any of Examples 1-3 further includes
that the at least one UE configuration parameter is indicated in an
IE.
In Example 5, the method of any of Examples 1-4 further includes
that the at least one UE configuration parameter is indicated in a
UE Assistance IE (UAI) in addition to a preferred setting for a
delay budget report.
In Example 6, the method of any of Examples 1-5 further includes
that the at least one UE configuration parameter comprises an
indication for a preferred discontinuous reception parameter
including at least one of an average data rate, an average
transport block size, or an average burst duration.
In Example 7, the method of any of Examples 1-6 further includes
that the at least one UE configuration parameter comprises an
indication for a preferred bandwidth configuration for the UE,
wherein the indication indicates at least one of an aggregated
bandwidth across serving cells for different types of carriers, a
downlink/uplink bandwidth part index for a serving cell, a number
of uplink carriers, a number of downlink carriers.
In Example 8, the method of any of Examples 1-7 further includes
that the at least one UE configuration parameter comprises an
indication for a preferred data channel parameter, wherein the
indication indicates a maximum transport block size for a downlink
data channel or an uplink data channel.
In Example 9, the method of any of Examples 1-8 further includes
that the at least one UE configuration parameter comprises an
indication for a preferred control channel parameter, wherein the
preferred control channel parameter comprises at least one of a TDD
pattern, a control channel monitoring periodicity, or processing
timeline related to feedback processing.
In Example 10, the method of any of Examples 1-9 further includes
that the at least one UE configuration parameter comprises an
indication for a beam management parameter, wherein the beam
management parameter comprises at least one of a preferred antenna
panel, a preferred beam, information about a trajectory of the UE,
or a mobility parameter for the UE.
In Example 11, the method of any of Examples 1-10 further includes
that the at least one UE configuration parameter indicates power
status information for the UE, wherein the power status information
comprises at least one of a battery level, a thermal level of a
modem, or an indication of a power preference for the UE.
In Example 12, the method of any of Examples 1-11 further includes
receiving a range of available parameters from the base station;
and selecting a parameter for the at least one UE configuration
parameter from among the range of available parameters received
from the base station.
In Example 13, the method of any of Examples 1-12 further includes
that the range of available parameters is received in a broadcast
from the base station or is received in a dedicated RRC signaling
for the UE, and wherein the at least one UE configuration parameter
comprises an index corresponding to a value selected from among the
range of available parameters received from the base station.
In Example 14, the method of any of Examples 1-13 further includes
determining that UE indication of the at least one UE configuration
parameter is supported by the base station based on receiving the
range of available parameters from the base station.
Example 15 is a device including one or more processors and one or
more memories in electronic communication with the one or more
processors storing instructions executable by the one or more
processors to cause the device to implement a method as in any of
Examples 1-14.
Example 16 is a system or apparatus including means for
implementing a method or realizing an apparatus as in any of
Examples 1-14.
Example 17 is a non-transitory computer readable medium storing
instructions executable by one or more processors to cause the one
or more processors to implement a method as in any of Examples
1-14.
Example 18 is a method of wireless communication at a base station,
comprising: receiving, from a UE, at least one UE configuration
parameter comprising at least one preferred parameter for a UE
configuration; and configuring the UE using the at least one UE
configuration parameter received from the UE.
In Example 19, the method of Example 18 further includes that the
at least one UE configuration parameter comprises an indication for
a preferred parameter for at least one of a DRX long cycle, a DRX
short cycle, a DRX inactivity timer, or a DRX short cycle
timer.
In Example 20, the method of Example 18 or 19 further includes that
the at least one UE configuration parameter comprises an indication
for a parameter for at least one of a DRX on duration or a DRX slot
offset.
In Example 21, the method of any of Examples 18-20 further include
that the at least one UE configuration parameter is indicated in an
IE.
In Example 22, the method of any of Examples 18-21 further include
that the at least one UE configuration parameter is indicated in a
UAI in addition to a preferred setting for a delay budget
report.
In Example 23, the method of any of Examples 18-22 further include
that the at least one UE configuration parameter comprises an
indication for a preferred discontinuous reception parameter
including at least one of an average data rate, an average
transport block size, or an average burst duration.
In Example 24, the method of any of Examples 18-23 further include
that the at least one UE configuration parameter comprises an
indication for a preferred bandwidth configuration for the UE,
wherein the indication indicates at least one of an aggregated
bandwidth across serving cells for different types of carriers, a
downlink/uplink bandwidth part index for a serving cell, a number
of uplink carriers, a number of downlink carriers.
In Example 25, the method of any of Examples 18-24 further include
that the at least one UE configuration parameter comprises an
indication for a preferred data channel parameter, wherein the
indication indicates a maximum transport block size for a downlink
data channel or an uplink data channel.
In Example 26, the method of any of Examples 18-25 further include
that the at least one UE configuration parameter comprises an
indication for a preferred control channel parameter, wherein the
preferred control channel parameter comprises at least one of a TDD
pattern, a control channel monitoring periodicity, or a processing
timeline related to feedback processing.
In Example 27, the method of any of Examples 18-26 further include
that the at least one UE configuration parameter comprises an
indication for a beam management parameter, wherein the beam
management parameter comprises at least one of a preferred antenna
panel, a preferred beam, information about a trajectory of the UE,
or a mobility parameter for the UE.
In Example 28, the method of any of Examples 18-27 further include
that the at least one UE configuration parameter indicates power
status information for the UE, wherein the power status information
comprises at least one of a battery level, a thermal level of a
modem, or an indication of a power preference for the UE.
In Example 29, the method of any of Examples 18-28 further include
transmitting a range of available parameters from the base station,
wherein the at least one UE configuration parameter comprises a
parameter selected from among the range of available parameters
received from the base station.
In Example 30, the method of any of Examples 18-29 further include
that the range of available parameters is broadcast from the base
station or is transmitted in a dedicated RRC signaling for the
UE.
In Example 31, the method of any of Examples 18-30 further include
that the at least one UE configuration parameter comprises an index
corresponding to a value selected from among the range of available
parameters transmitted from the base station.
Example 32 is a device including one or more processors and one or
more memories in electronic communication with the one or more
processors storing instructions executable by the one or more
processors to cause the device to implement a method as in any of
Examples 18-31.
Example 33 is a system or apparatus including means for
implementing a method or realizing an apparatus as in any of
Examples 18-31
Example 34 is a non-transitory computer readable medium storing
instructions executable by one or more processors to cause the one
or more processors to implement a method as in any of Examples
18-31.
It is understood that the specific order or hierarchy of blocks in
the processes/flowcharts disclosed is an illustration of example
approaches. Based upon design preferences, it is understood that
the specific order or hierarchy of blocks in the
processes/flowcharts may be rearranged. Further, some blocks may be
combined or omitted. The accompanying method claims present
elements of the various blocks in a sample order, and are not meant
to be limited to the specific order or hierarchy presented.
The previous description is provided to enable any person skilled
in the art to practice the various aspects described herein.
Various modifications to these aspects will be readily apparent to
those skilled in the art, and the generic principles defined herein
may be applied to other aspects. Thus, the claims are not intended
to be limited to the aspects shown herein, but is to be accorded
the full scope consistent with the language claims, wherein
reference to an element in the singular is not intended to mean
"one and only one" unless specifically so stated, but rather "one
or more." The word "exemplary" is used herein to mean "serving as
an example, instance, or illustration." Any aspect described herein
as "exemplary" is not necessarily to be construed as preferred or
advantageous over other aspects. Unless specifically stated
otherwise, the term "some" refers to one or more. Combinations such
as "at least one of A, B, or C," "one or more of A, B, or C," "at
least one of A, B, and C," "one or more of A, B, and C," and "A, B,
C, or any combination thereof" include any combination of A, B,
and/or C, and may include multiples of A, multiples of B, or
multiples of C. Specifically, combinations such as "at least one of
A, B, or C," "one or more of A, B, or C," "at least one of A, B,
and C," "one or more of A, B, and C," and "A, B, C, or any
combination thereof" may be A only, B only, C only, A and B, A and
C, B and C, or A and B and C, where any such combinations may
contain one or more member or members of A, B, or C. All structural
and functional equivalents to the elements of the various aspects
described throughout this disclosure that are known or later come
to be known to those of ordinary skill in the art are expressly
incorporated herein by reference and are intended to be encompassed
by the claims. Moreover, nothing disclosed herein is intended to be
dedicated to the public regardless of whether such disclosure is
explicitly recited in the claims. The words "module," "mechanism,"
"element," "device," and the like may not be a substitute for the
word "means." As such, no claim element is to be construed as a
means plus function unless the element is expressly recited using
the phrase "means for."
* * * * *
References